diff --git a/switch.js b/switch.js
index e69de29..941906e 100644
--- a/switch.js
+++ b/switch.js
@@ -0,0 +1,74 @@
+function initialize() {
+  Shelly.call("Switch.GetStatus",
+    { id: CONFIG.switchId },
+    function (res, error_code, error_msg, ud) {
+      print("Initializing... current switch state is:", res.output)
+      switchIsOpen = res.output;
+      runLoop();
+    },
+    null
+  );
+}
+
+function runLoop() {
+  let alertTimer = Timer.set(
+      CONFIG.pollingInterval,
+      true, // Run periodically
+      function (ud) {
+          Shelly.call("HTTP.REQUEST",
+            { method: "POST", url: CONFIG.pollingUrl, body: '{"801":{"170":null}}', timeout: 10 },
+            function (res, error_code, error_msg, ud) {
+              print("errors-http-post:", error_code, error_msg);
+              if (error_code === 0) {
+                let parsedBody = JSON.parse(res.body);
+                let production = parsedBody["801"]["170"]["101"];
+                let consumption = parsedBody["801"]["170"]["110"];
+                print("read production and consumption", production, consumption)
+                let threshold;
+                if (switchIsOpen) {
+                  threshold = consumption;
+                } else {
+                  threshold = consumption + CONFIG.chargingConsumption;
+                }
+                // print(threshold);
+                if (production > threshold) {
+                  if (!switchIsOpen) {
+                    setSwitch(true);
+                  }
+                } else {
+                  if (switchIsOpen) {
+                    setSwitch(false);
+                  }
+                }
+              }
+            },
+            null
+          );
+      },
+      null
+  );
+}
+
+function setSwitch(on) {
+  Shelly.call("Switch.Set",
+    { id: CONFIG.switchId, on: on },
+    function (res, error_code, error_msg, ud) {
+      print("errors-switch-set:", error_code, error_msg);
+      let newSwitchState = !res["was_on"];
+      switchIsOpen = newSwitchState;
+      print("Changed switch state to:", newSwitchState);
+    },
+    null
+  );
+}
+
+let CONFIG = {
+  pollingInterval: 60 * 1000,
+  pollingUrl: "192.168.178.101/getjp",
+  switchId: 0,
+  chargingConsumption: 2100,
+};
+
+let switchIsOpen;
+
+initialize();